Record-Setting Cold Christmas Week? It's still early, and I think the GFS is seriously over-doing the cold. At least I pray that's the case. But subzero temperatures are possible, even likely Christmas Week, within striking distance of setting a few record low temperatures. Highs may be at or just below zero, nighttime lows dipping down colder than -10 to -15F. A real winter this year? You bet'cha.